Gigabyte GA-8S648FX User Manual page 20

1) CPU_FAN (CPU FAN Connector)
Sense
1
GND
2) SYS_FAN (System FAN Connector)
1
GND
+12V
3) NB_FAN (Chip FAN Connector)
1
+12V
GND
4) ATX_12V (+12V Power Connector)
3
+12V
GND
1
GA-8SG800/GA-8S648FX Motherboard
+12V
Sense
4
+12V
GND
2
- 16 -
Ø
Please note, a proper installation of the CPU
cooler is essential to prevent the CPU from
running under abnormal condition or damaged
by overheating.The CPU fan connector
supports Max. current up to 600 mA.
Ø
This connector allows you to link with the
cooling fan on the system case to lower the
system temperature.
Ø If you installed wrong direction, the Chip Fan
will not work. Sometimes will damage the Chip
Fan. (Usually black cable is GND)
ØThis connector (ATX_12V) supplies the CPU
operation voltage (Vcore).
If this " ATX_12V connector" is not connected,
system cannot boot.